When Renee Walker went undercover as "Renee Zadan" during Day 8, she influenced Vladimir Laitanan to call all of his criminal contacts and inquire about smuggled uranium fuel rods. Eventually, Laitanan worked straight through his list of contacts, including Sergei Bazhaev, who had the rods but denied it. Laitanan's last call was to Roman, who knew nothing of the rods and said it was "suicide" to try to deal them. ("Day 8: 10:00pm-11:00pm")

Before being kidnapped by Bazhaev's group, Jack suggested that CTU sift through Laitanan's phone records -- as a result of this, it is possible that Roman fell under investigation and may have been arrested.